CN104530730A - Modified asphalt reinforcing additive and application thereof - Google Patents
Modified asphalt reinforcing additive and application thereof Download PDFInfo
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- CN104530730A CN104530730A CN201410854109.1A CN201410854109A CN104530730A CN 104530730 A CN104530730 A CN 104530730A CN 201410854109 A CN201410854109 A CN 201410854109A CN 104530730 A CN104530730 A CN 104530730A
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- asphalt modification
- enhancement additive
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Abstract
The invention relates to a modified asphalt reinforcing additive and an application thereof, and belongs to the technical field of additives. The modified asphalt reinforcing additive comprises 100 parts of rubber powder, 5-20 parts of waste plastics, 5-10 parts of hydroxy acrylate, 5-10 parts of epoxy resin and 1-5 parts of glass fibers. The above raw materials are stirred and evenly mixed, and accordingly the modified asphalt reinforcing additive can be obtained. According to the modified asphalt reinforcing additive and the application thereof, the waste rubber powder and the waste plastics are used as the main raw materials of the modified asphalt reinforcing additive, 'waste' can be turned into wealth, resource regeneration is achieved, and energy saving and environmental protection can be better achieved. The modified asphalt reinforcing additive is low in cost, and after asphalt is modified by the modified asphalt reinforcing additive, the asphalt has high high-temperature performance and anti-fatigue performance.
Description
Technical field
The present invention relates to asphalt modification enhancement additive and application thereof, that a kind of asphalt modification of waste old modification that adopts strengthens powder specifically, for using the asphalt performance in products such as preparing pitch agglomerate, modified asphalt concrete, waterproof paint to carry out to strengthen and the material of modification, belong to additive technology field.
Background technology
Current China socio-economic development enters the new stage, economizes on resources to have caused extensive attention, Accelerating The Construction resource-conserving friendly environment society one of basic strategy becoming national sustainable development with protection of the environment.Namely junked tire is a kind of solid waste, also be a kind of renewable resource simultaneously, the waste rubber tyre powder adopting junked tire to be processed in highway engineering and waterproof paint product, not only can reach the one-stop innoxious recycle of waste, solve social enviroment protection problem, but also asphalt performance can be improved further, reduce costs.
Adopt the modified pitch of waste old to become asphalt rubber (AR), facts have proved, asphalt rubber has the advantages such as wear-resisting, anti-skidding, antifreeze, by the U.S., Japan and European Countries mating formation in order to high-grade highway.At present, rubber powder modified asphalt is just enjoying people pay close attention to and pay attention to its excellent performance and resource environment protection, and rise at home gradually, but there is unstable properties in rubber powder modified asphalt, mix proportion design requirement is high, the shortcomings such as rubber dispersion stabilization in pitch is poor, SBS modifying asphalt obtains with its excellent over-all properties and applies widely, but it also exists price is high, ageing resistance is poor shortcoming.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of pollution-free, possess superperformance, and the high waste rubber asphalt modification of cost performance strengthens powder and application thereof.
According to technical scheme provided by the invention, a kind of asphalt modification enhancement additive, formula rate is as follows by weight: rubber powder 100 parts, plastic waste 5-20 part, vinylformic acid hydroxyl ester 5-10 part, epoxy resin 5-10 part, glass fibre 1-5 part; By above-mentioned raw materials through being uniformly mixed, stirring velocity is 500-800rpm, obtains asphalt modification enhancement additive, and its order number is 35-200 order.
Described rubber powder is that to obtain particle diameter be 35-200 object devulcanized rubber powder in junked tire desulfurization after crushed.
The sulfur removal technology that described rubber powder adopts be low temperature from plastify sulfur removal technology, high temperature continuous desulphurizing technique, Screw Extrusion sulfur removal technology, microwave desulfurization technique, your sulfur removal technology of Lu Qi-Fick, far infrared rays sulfur removal technology, without one or more in oily sulfur removal technology or biological desulfurization process.
Described plastic waste is the waste or used plastics powder of one or several mixed plastic in low density polyethylene, high density polyethylene, linear low density polyethylene LLDPE, polyethylene terephthalate PET, acrylonitrile-butadiene-styrene (ABS) ABS gained after crushed; The particle diameter of described plastic waste is 40-200 order.
Described epoxy resin is 3240 epoxy plates, one or more waste epoxy material mixing are pulverized and formed in FR4 epoxy plate, epoxy novolac plate; The particle diameter of described epoxy resin is 40-200 order.
One or more discarded glass fiber materials such as described glass fibre is glass-fiber-plate, glass-fiber-fabric, glass fibre yarn, glass rod are pulverized and are formed; The particle diameter of glass fibre is 40-200 order.
The application of described asphalt modification enhancement additive: using pitch as matrix, add asphalt modification when being heated to 140-200 DEG C and strengthen powder, addition is the 20%-40% of asphalt quality, and churning time is 2-4h.
Wherein, rubber powder adopts particle diameter to be more than 35 orders, and use the tasteless rubber powder of (waste and old) through desulphurization circulating, it is mainly derived from various waste old, and the desulfurization of its rubber can adopt existing sulfur removal technology.
Beneficial effect of the present invention: the present invention adopts waste Crumb rubber, plastic waste to strengthen the main raw material of powder as this asphalt modification, achieves and turns waste into wealth, resource recovery, be conducive to energy-conserving and environment-protective.It is lower that asphalt modification of the present invention strengthens powder cost, adopts asphalt modification of the present invention to strengthen powder and carry out modifiedly having higher high-temperature behavior and anti-fatigue performance to pitch.
Embodiment
Embodiment 1
Asphalt modification strengthens the preparation of powder: rubber powder 100 parts, plastic waste 5-20 part, vinylformic acid hydroxyl ester 5-10 part, epoxy resin 5-10 part, glass fibre 1-5 part; By above-mentioned raw materials through being uniformly mixed, stirring velocity is 500-800rpm, obtains asphalt modification enhancement additive, and its order number is 35-200 order, obtains asphalt modification and strengthens powder.
Embodiment 2
Adopt 70# pitch as matrix, whipping temp selects 180 DEG C, 200 DEG C, 220 DEG C, asphalt modification strengthens powder volume and selects 15%, 20%, 25%, modified asphalt powder granularity selection 30 order, 60 orders, 90 orders, churning time selects 1h, 1.5h, 3h to do orthogonal test as four factor three levels, investigates the performance of modified asphalt powder.Orthogonal and test-results is in table 1.
Using 70# pitch as matrix, add asphalt modification when being heated to 140-200 DEG C and strengthen powder, addition is the 20%-40% of asphalt quality, and churning time is 2-4h.
Table 1
Embodiment 3
Adopt 50# pitch as matrix, whipping temp selects 180 DEG C, and asphalt modification strengthens powder volume and selects 30%, granularity selection 90 order, and churning time is carry out high-temperature rutting test and normal strain fatigue test under the condition of 3h.
High-temperature rutting test result is Dynamic stability number is 3968 times/mm, relative deformation 2.5% (technical requirements is Dynamic stability number >=3500, relative deformation≤3.1), normal strain fatigue test-results for when microstrain is 200 μ ε fatigue lifetime be 835284 times, when microstrain is 300 μ ε fatigue lifetime be 271746 times, when microstrain is 400 μ ε fatigue lifetime be 48842 times.
Embodiment 4
Adopt 70# pitch as matrix, whipping temp selects 180 DEG C, and asphalt modification strengthens powder volume and selects 20%, granularity selection 90 order, and churning time is carry out high-temperature rutting test and normal strain fatigue test under the condition of 3h.
High-temperature rutting test result is Dynamic stability number is 4687 times/mm, relative deformation 2.1% (technical requirements is Dynamic stability number >=3500, relative deformation≤3.1), normal strain fatigue test-results for when microstrain is 200 μ ε fatigue lifetime be 895678 times, when microstrain is 300 μ ε fatigue lifetime be 255678 times, when microstrain is 400 μ ε fatigue lifetime be 55678 times.
Embodiment 5
Adopt 90# pitch as matrix, whipping temp selects 180 DEG C, and asphalt modification strengthens powder volume and selects 40%, granularity selection 90 order, and churning time is carry out high-temperature rutting test and normal strain fatigue test under the condition of 3h.
High-temperature rutting test result is Dynamic stability number is 5246 times/mm, relative deformation 2.2% (technical requirements is Dynamic stability number >=3500, relative deformation≤3.1), normal strain fatigue test-results for when microstrain is 200 μ ε fatigue lifetime be 915367 times, when microstrain is 300 μ ε fatigue lifetime be 301029 times, when microstrain is 400 μ ε fatigue lifetime be 57946 times.
Claims (7)
1. an asphalt modification enhancement additive, is characterized in that formula rate is as follows by weight: rubber powder 100 parts, plastic waste 5-20 part, vinylformic acid hydroxyl ester 5-10 part, epoxy resin 5-10 part, glass fibre 1-5 part; By above-mentioned raw materials through being uniformly mixed, stirring velocity is 500-800rpm, obtains asphalt modification enhancement additive, and its order number is 35-200 order.
2. asphalt modification enhancement additive as claimed in claim 1, is characterized in that: described rubber powder is that to obtain particle diameter be 35-200 object devulcanized rubber powder in junked tire desulfurization after crushed.
3. asphalt modification enhancement additive as claimed in claim 2, is characterized in that: the sulfur removal technology that described rubber powder adopts be low temperature from plastify sulfur removal technology, high temperature continuous desulphurizing technique, Screw Extrusion sulfur removal technology, microwave desulfurization technique, your sulfur removal technology of Lu Qi-Fick, far infrared rays sulfur removal technology, without one or more in oily sulfur removal technology or biological desulfurization process.
4. asphalt modification enhancement additive as claimed in claim 1, is characterized in that: described plastic waste is the waste or used plastics powder of one or several mixed plastic in low density polyethylene, high density polyethylene, linear low density polyethylene LLDPE, polyethylene terephthalate PET, acrylonitrile-butadiene-styrene (ABS) ABS gained after crushed; The particle diameter of described plastic waste is 40-200 order.
5. asphalt modification enhancement additive as claimed in claim 1, is characterized in that: described epoxy resin is 3240 epoxy plates, one or more waste epoxy material mixing are pulverized and formed in FR4 epoxy plate, epoxy novolac plate; The particle diameter of described epoxy resin is 40-200 order.
6. asphalt modification enhancement additive as claimed in claim 1, is characterized in that: one or more discarded glass fiber materials such as described glass fibre is glass-fiber-plate, glass-fiber-fabric, glass fibre yarn, glass rod are pulverized and formed; The particle diameter of glass fibre is 40-200 order.
7. the application of asphalt modification enhancement additive described in claim 1, is characterized in that: using pitch as matrix, and add asphalt modification when being heated to 140-200 DEG C and strengthen powder, addition is the 20%-40% of asphalt quality, and churning time is 2-4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854109.1A CN104530730A (en) | 2014-12-31 | 2014-12-31 | Modified asphalt reinforcing additive and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854109.1A CN104530730A (en) | 2014-12-31 | 2014-12-31 | Modified asphalt reinforcing additive and application thereof |
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| CN104530730A true CN104530730A (en) | 2015-04-22 |
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| CN201410854109.1A Pending CN104530730A (en) | 2014-12-31 | 2014-12-31 | Modified asphalt reinforcing additive and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009727A (en) * | 2016-06-17 | 2016-10-12 | 浙江大学宁波理工学院 | Elastic mixture for bridge support repairing and preparation method thereof |
| CN109943084A (en) * | 2019-03-12 | 2019-06-28 | 武汉理工大学 | A kind of response type hot asphalt regenerative agent and preparation method |
| CN110387131A (en) * | 2019-07-22 | 2019-10-29 | 尧棋 | A kind of high storage stability rubber and plastic alloy asphalt modifier and preparation method thereof |
| CN114804721A (en) * | 2022-03-29 | 2022-07-29 | 武汉工程大学 | Preparation method of high-fatigue-resistance waste PET plastic modified rubber asphalt concrete |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009727A (en) * | 2016-06-17 | 2016-10-12 | 浙江大学宁波理工学院 | Elastic mixture for bridge support repairing and preparation method thereof |
| CN109943084A (en) * | 2019-03-12 | 2019-06-28 | 武汉理工大学 | A kind of response type hot asphalt regenerative agent and preparation method |
| CN110387131A (en) * | 2019-07-22 | 2019-10-29 | 尧棋 | A kind of high storage stability rubber and plastic alloy asphalt modifier and preparation method thereof |
| CN114804721A (en) * | 2022-03-29 | 2022-07-29 | 武汉工程大学 | Preparation method of high-fatigue-resistance waste PET plastic modified rubber asphalt concrete |
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Application publication date: 20150422 |